Study On The In-place Cold Recycling For Asphalt Pavevnent

As rapid development of highway construction in our country, a large number of early construction of the highway gradually enter major and medium repairs period, in which an effective way to carry out will be urgent. Recycling of asphalt pavements can effectively enhance the use of resources, protect ecological environment and accords with the national strategy of developing cycling economy and realizing sustainable development. Therefore, research on the technology of asphalt pavement recycling is of great significance.Based on the results of research from home and abroad, and the characteristic of the widely-adopted semi-rigid pavement in our country, the thesis studies the cold in-place recycling technology stabilized by cement. In the laboratory, studies the performance of recycling mixture, and then compared the properties with the typical kind of semi-rigid material, the results showed that the cold recycling materials has a good performance for construction, and some performance close to or even more than semi-rigid material, but some regularity of the two kind of materials are different. Based on the research results in laboratory test, puts forward the parameters for structure design of cold recycling and Structure design method and gives the structural design examples for cold recycling. Meanwhile, the clod recycling construction technology has conducted in-depth research, made specific construction methods and quality control standards and paved test road, which conducted a comprehensive test and measurement. Finally, analyzing the tremendous economic and social benefits which. brought about by clod recycling.The results show that the in-place cold recycling is a viable technology, has broad development prospects, especially in the areas where lack of stand stone for reconstruction and large and medium-sized maintenance.